a, e, l, n, p, h, t, w are letters that make 'planet wheel'
el, heel, lane, LAN, plan, AN, he, la, eel, He, EL, EE, plane, net, ane, wheel, LA, NE, planet, La, Ne are words within 'planet wheel'
1 possible definitions for 'planet wheel'
Under this definition, planet wheel is a noun and has the following properties:
planetary gear, epicyclic gear, planet gear have the same meaning as 'planet wheel'
'planet wheel' can be a type of gear, gear wheel, geared wheel, cogwheel.
'planet wheel' can be a part of epicyclic train, epicyclic gear train.